<!DOCTYPE html>
<script src="../include.js"></script>
<svg width="1" height="1">
  <marker id="mk" markerWidth="1" markerHeight="1">
    <circle id="t" cx="0" cy="0" r="0"></circle>
  </marker>
</svg>
<script>
  test(() => {
    try {
      document.getElementById("t").getBBox();
      println("Did not throw");
    } catch (e) {
      println(`Threw ${e.name}`);
    }
  });
</script>